{
  "$type": "site.standard.document",
  "description": "A parking brake control apparatus controls an electric motor based on an “estimated thrust force (stroke)” acquired from a “stroke” corresponding to an electric motor rotational amount acquired based on a current value and a voltage value supplied to the electric motor and a “pad stiffness learned…",
  "path": "/patents/1426366",
  "publishedAt": "2026-06-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T13/662",
    "Hitachi Astemo, Ltd."
  ],
  "textContent": "A parking brake control apparatus controls an electric motor based on an “estimated thrust force (stroke)” acquired from a “stroke” corresponding to an electric motor rotational amount acquired based on a current value and a voltage value supplied to the electric motor and a “pad stiffness learned value (more specifically, pad stiffness after a temperature characteristic is taken into consideration)”, which is an element regarding stiffness including stiffness of brake pads, when the current value changes according to a change in the voltage value applied to the electric motor.",
  "title": "ELECTRIC BRAKE APPARATUS, ELECTRIC BRAKE CONTROL METHOD, AND CONTROL APPARATUS"
}